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21. 发明公开

EP0710389A1 ACOUSTIC TRANSMITTING AND RECEIVING UNIT 有权转让
标题翻译： AKOUSTISCHE发送和接收单元
公开(公告)号：EP0710389A1
公开(公告)日：1996-05-08
申请号：EP94919781.0
申请日：1994-07-07
申请人： GEC MARCONI LTD.
发明人： CROWTHER, Paul Andrew, 7 Holly Terrace
IPC分类号： G01S7 , G01S15 , H04R19
CPC分类号： H04R19/02 , H04R19/04
摘要： An acoustic transmitting or receiving unit for transmitting or receiving acoustic energy through a planar member (2) is formed by an acoustic driver (7, 8, 9) acting on the planar member through an aperture (5) in a plate (4). The plate is attached to the planar member across its surface and the plate has greater stiffness than the planar member.

22. 发明公开

EP0147432A4 ELECTRODE FOR ELECTROSTATIC TRANSDUCER AND METHODS OF MANUFACTURE. 失效
标题翻译：电极，电网静止变流器及其处理工艺。
公开(公告)号：EP0147432A4
公开(公告)日：1986-06-05
申请号：EP84902282
申请日：1984-05-22
申请人： BEVERIDGE HAROLD NORMAN
发明人： BEVERIDGE HAROLD NORMAN
IPC分类号： H04R19/00 , H01G7/02 , H04R19/02 , B23B7/14 , B23B31/00 , B44C1/22 , C23F1/02
CPC分类号： H04R19/02 , Y10T29/49005
摘要： Electrodes, electrostatic transducers employing the electrodes, and methods of making the electrodes and the electrostatic transducers. Sparking from conventional electrodes, which occurs in the air gap, causes serious damage to thin film diaphragms. Such electrodes are therefore surrounded by dielectrics having a volume resistivity of 10 to 10 ohm cm. But, the volume resistivity at such a high level causes the charge transfer deposits on the dielectric surface to remain there for some time which reduces the polarizing voltage and the audio output with concurrent sound distortion. An electrode (13) according to the present invention has a nonconductive substrate (15) and a conductive layer (16) having a first plurality of holes (18) applied to the substrate and then coated with a dielectric layer (20) wherein the dielectric layer has a relatively low resistivity (e.g. 10 ohm cm). A second and third plurality of holes (700, 710), concentric with but of smaller diameter than the first plurality of holes (18), are formed through the dielectric layer (20) and the nonconductive substrate (15), thereby providing a recess spacing (19) between the conductive layer holes (18) and the holes (700, 710). In one embodiment of an electrostatic transducer (11), two electrodes (13) are spaced from a diaphragm (12) positioned therebetween. An electrostatic transducer (40) having multiple diaphragms (12, 21) is made by incorporating two types of electrodes (13, 28). One type of electrode (13) has one side of a nonconductive substrate (15) coated with a conductor (16) and a dielectric layer (20). The other type of electrode (28) has two sides of a nonconductive substrate (17) coated with a conductive layer (60, 61) and then with a dielectric layer (100, 101).

23. 发明公开

EP0057215A1 IMPROVED STEP-UP CIRCUIT FOR DRIVING FULL-RANGE-ELEMENT ELECTROSTATIC LOUDSPEAKERS 失效
标题翻译：改进UP变换电路，用于控制静电式扬声器宽带元素。
公开(公告)号：EP0057215A1
公开(公告)日：1982-08-11
申请号：EP81902229.0
申请日：1981-08-10
申请人： STRICKLAND, James C.
发明人： STRICKLAND, James C.
IPC分类号： H04R3 , H04R19
CPC分类号： H04R19/02 , H04R3/06
摘要： Dans le domaine technique de la reproduction sonore au moyen de haut-parleurs electrostatiques a large bande passante on rencontre des problemes dans le circuit d'attaque. Le circuit d'attaque decrit permet d'eliminer les inconvenients que presentent les amplificateurs de l'art anterieur concus specialement, du type a transformateur elevateur, et de rendre les haut-parleurs electrostatiques plus competitifs du point de vue acoustique et economique. Les problemes resolus sont les suivants: obtenir une caracteristique egalisee de passage complementaire a la charge capacitive et a la resistance de radiation changeant radicalement sur toute la gamme audible-signaux sonores d'attaque precis a haute tension, d'un rendement eleve - acoustiquement "plat" (transitions douces d'amplitude, de phase et d'impedance), adaptation appropriee de l'impedance entre les amplificateurs conventionnels possedant une faible impedance et une faible tension d'entree et les haut-parleurs, un prix modere, un poids reduit et un encombrement limite. Le circuit d'attaque utilise deux transformateurs audio specialement concus (T1, T2) en liaison parallele-bilaterale comprenant des reseaux RC (R2, R3, C2, C3). Afin d'assurer une reponse optimale un transformateur (T1) travaille dans une plage de frequence allant de 30Hz a environ 5kHz, et l'autre transformateur (T2) possedant une impedance d'entree cooperative ajoutee (R1-C1) travaille dans une plage allant de quelques centaines de Hz jusqu'a 20kHz. Une conservation d'energie a resonance aux hautes frequences est utilisee.

24. 发明公开

EP4436210A1 SPEAKER DEVICE 审中-公开
公开(公告)号：EP4436210A1
公开(公告)日：2024-09-25
申请号：EP23163803.2
申请日：2023-03-23
申请人： Infineon Technologies AG
发明人： BRETTHAUER, Christian
IPC分类号： H04R17/00 , H04R19/00 , H04R19/02
CPC分类号： H04R17/00 , H04R2217/0320130101 , H04R19/005 , H04R2201/00320130101 , H04R19/02 , G10K15/04
摘要： A speaker device (100) and a multi-way speaker device (90) are presented. The speaker device (100) comprises a housing (10) having an acoustic aperture (12), a transducer element (20) in the housing (10) configured to receive a first actuation signal (S1) and to generate an acoustic output signal (SOUT) in response to the first actuation signal (S1). The speaker device comprises a shutter element (30) in the housing (10) configured to receive a second actuation signal (S2), wherein the shutter element (30) is arranged laterally offset to the transducer element (20) in the housing (10), and wherein the shutter element (30) is arranged in an acoustic path (32) between the transducer element (20) and the acoustic aperture (12) and comprises a movable shutter portion (34), which is movable in opposite directions in response to the second actuation signal (S2). The speaker device (100) further comprises a controller (40) configured to provide the first actuation signal (S1) to the transducer element (20), wherein the first actuation signal (S1) has an ultrasonic signal component which is modulated with an audio signal component, and to provide the second actuation signal (S2) to the shutter element (30), wherein the second actuation signal (S2) has half the frequency of the ultrasonic signal component.

25. 发明授权

EP3952341B1 ELECTROSTATIC TRANSDUCER AND ELECTROSTATIC TRANSDUCER UNIT 有权
公开(公告)号：EP3952341B1
公开(公告)日：2024-09-11
申请号：EP20795774.7
申请日：2020-03-27
IPC分类号： B06B1/02 , G01H11/06 , G01L1/14 , G01L1/18 , G01L1/22 , G01L1/26 , H04R19/02 , H04R19/04 , H10N30/87 , B62D1/04 , H10N30/857
CPC分类号： H04R19/04 , H04R19/02 , B06B1/0292 , G01H11/06 , B62D1/046 , G01L1/142 , G01L1/18 , G01L1/2287 , G01L1/26 , H10N30/878 , H10N30/857

26. 发明公开

EP4406241A1 MULTILAYERED ELECTROSTATIC TRANSDUCER 审中-实审
公开(公告)号：EP4406241A1
公开(公告)日：2024-07-31
申请号：EP22786067.3
申请日：2022-09-21
申请人： Warwick Acoustics Limited
发明人： LISLE, Benjamin Martin , HEDGES, James , EVANS, Samuel John , MARRIOTT, Ashley
IPC分类号： H04R7/08 , H04R19/02 , H04R1/24 , H04R7/10
CPC分类号： H04R19/02 , H04R7/08 , H04R7/10 , H04R2307/02720130101 , H04R1/24

27. 发明公开

EP4406240A1 MULTILAYERED ELECTROSTATIC TRANSDUCER 审中-实审
公开(公告)号：EP4406240A1
公开(公告)日：2024-07-31
申请号：EP22782939.7
申请日：2022-09-21
申请人： Warwick Acoustics Limited
发明人： LISLE, Benjamin Martin , HEDGES, James , EVANS, Samuel John , MARRIOTT, Ashley
IPC分类号： H04R7/08 , H04R19/02 , H04R1/24 , H04R7/10
CPC分类号： H04R19/02 , H04R7/08 , H04R7/10 , H04R2307/02720130101 , H04R1/24

28. 发明公开

EP4366325A1 EARPHONE 审中-实审
公开(公告)号：EP4366325A1
公开(公告)日：2024-05-08
申请号：EP23844351.9
申请日：2023-07-13
申请人： Audio-Technica Corporation
发明人： IRII, Koichi , SANO, Yusuke
IPC分类号： H04R1/10 , H04R19/02
CPC分类号： H04R1/10 , H04R19/02
摘要： An earphone includes a housing 11 that is connected with a nozzle 15 for emitting sound to the outside, a fixed pole 17 that is fixed inside the housing 11, a diaphragm 21 that is provided so as to divide a space inside the housing 11 into two, and vibrates in accordance with a potential difference generated between the diaphragm and the fixed pole 17 facing each other, a support part 27 that supports the diaphragm 21 such that a portion of the diaphragm 21 is in contact with the fixed pole 17, and an adjustment hole 14 that is formed so as to penetrate a wall of the housing 11 on a side opposite to the one having the nozzle 15, from the perspective of the diaphragm 21, and adjusts a pressure inside the housing 11. A through-membrane hole 22 penetrating the diaphragm 21 is formed in the portion of the diaphragm 21.

29. 发明公开

EP1444861A4 ULTRASONIC TRANSDUCER FOR PARAMETRIC ARRAY 有权转让
公开(公告)号：EP1444861A4
公开(公告)日：2018-02-28
申请号：EP02789181
申请日：2002-10-09
申请人： POMPEI FRANK JOSEPH
发明人： POMPEI FRANK JOSEPH
IPC分类号： H04R1/00 , H04R19/00 , B06B1/02 , G01S7/521 , H04R19/02
CPC分类号： B06B1/0622 , B06B1/0292 , B82Y10/00 , B82Y30/00 , H04R19/02
摘要： An ultrasonic transducer having a reduced cost of manufacture. The ultrasonic transducer includes a first insulative retaining layer, a second insulative retaining layer, and a vibrator film layer sandwiched between the first and second retaining layers. The first retaining layer includes a first plurality of apertures formed therethrough, and the second retaining layer includes a second plurality of apertures formed therethrough, in which the second apertures are substantially in registration with the first apertures. The ultrasonic transducer further includes a first cover portion having a plurality of spring/backplate assemblies connected thereto, and a second cover portion. The combination of the first retaining layer, the vibrator film layer, and the second retaining layer is sandwiched between the first and second cover portions of the ultrasonic transducer. The laminated construction of the ultrasonic transducer allows the formation of an array of ultrasonic film transducers using a single piece of ultrasonic vibrator film.

30. 发明公开

EP3284266A2 METHODS AND SYSTEMS FOR DETECTING AT LEAST THE POSITION OF AN OBJECT IN SPACE 有权
标题翻译：用于至少在空间中检测对象位置的方法和系统
公开(公告)号：EP3284266A2
公开(公告)日：2018-02-21
申请号：EP16722391.6
申请日：2016-04-14
申请人： Audio Pixels Ltd.
发明人： COHEN, Yuval , LEWIN, Daniel , HABER, Eric Andreas , KAPLAN, Shay , BEN SIMON, Meir
IPC分类号： H04R1/00 , H04R1/40 , H04R3/00 , H04R19/02 , G01S7/521 , G01S15/42 , G01S15/93 , G01S15/88 , G06F3/01
CPC分类号： G01S15/931 , G01S7/521 , G01S15/42 , G01S15/88 , G01S2015/932 , G06F3/017 , H04R1/005 , H04R1/403 , H04R19/02
摘要： According to some embodiments there is provided a sound and detection system comprising at least a digital sound reconstruction speaker apparatus, comprising a plurality of pressure-pulse producing elements, and at least a controlling unit configured to control the actuation of the plurality of pressure-pulse producing elements, so as to produce at least an ultrasonic beam directed towards space during at least a first time interval, for the calculation of at least the position of at least part of an object present in space based on the sensing of at least ultrasonic sound waves reflected by said part of the object, and control the actuation of the plurality of pressure-pulse producing elements, so as to produce audible content during at least a second time interval. Various other systems, methods and applications are described.

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